EXFO FTB-3930 MultiTest - Manual (Page 25)

Multifunction Loss Tester 19
5 Measuring Power or Loss
The FTB-3930 Multifunction Loss Tester is equipped with an optical power
meter to measure absolute power (in dBm or W) or insertion loss (in dB).
The power meter port is independent of the F
AS
T
ES
T port.
The following functions are available on your power meter:
FT
B-
39
30
MUL
TI
TE
ST
Power meter port Power meter port
Measured
power/loss
Modulation
detected
Reference
power
Value under
threshold
Add current value
to Tested fibers
(to actually save
data, press Save
on function bar)
Perform offset
nulling Set reference for
loss measurement
Display power
(W or dBm)
or loss (dB)
Change name of
next saved fiber
Switch between
favorite wavelengths